Door.



No. 814,192. PATENTED MAR. 6, 1906, I'. DENTLBR,

DOUE.

APELIGATIOF FILED APR.28,1995.

2 SHEETS-SH'EET l.

Wtigeses MMM? No. 814,192. PATENTBD MAB.. 6, 1906.

P. DBNTLER.

noon. y

/Vb t TJ @i Y/////7// l/ /l A Witnesses;

UNITED PATENT OFFICE.

Doon.

Specification of Letters Patent.

Patented March 6, 1906.

Application filed April 28, 1905. Serial No. 257,95 B.

To f1/l whom it may concern:

Be it known that I, FRANK DENTLnn., a citizen of the United States, and a resident of Vicksburg, Kalamazoo county, Michigan, have invented certain new and useful Imrovements in Doors, of which the following is a specification.

This invention relates to improvements in doors.

The objects of this invention are, first, to provide an improved door which is adapted to close automatically in the event of lire; second, to rovide an improved sliding door which is a apted to form a very tight joint when closed and one which is very secure] Y supported when in its closed pcsitlon; third, to provide an improved automatically-closing fire-door the normal operation of which is entirely independent of the automatic closing means.

Further objects and ob'ects relating to the structural details will de nitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawings, forming a part of this specification, in which- Figure l is a side elevation of a structure embodying the features of my invention. Fig. 2 is a plan view of the structure ap earing in Fig. 1. Fig. 3 is an enlarged (fe-tail sectional View taken on a line corresponding to line 3 3 of Fig. 2, showing structural details. Fig. 4 is an enlarged sectional View taken on a line 4 4 of Fi 2, showing structural details. Fig. 5 is a detail sectional vievvr taken on line 5 5 of Fig. 4. Fig. 6 is an enlar ed detail sectional view taken on line 6 6 of ig. 2, showing the catch E and its retaining means. 1fig. 7 is a detail sectional view showing the manner for connecting a number of doors.

In the drawings the sectional views are taken looking in the direction of the little arrows at the ends of the section-lines, and similar letters of reference refer to similar parts throughout the several views.

Referring to the drawings, G represents a section of Wall having a door-opening therein.

A represents a door.

Arranged above the door-openingr is a track made u of sections B B, the section B being the ront section and the section B being the rear section thereof. These track-sections are supported by suitable hangers, as B. The forward ends of these track-sections B B are deflected inwardly, clearly appears in Fig. 2. The rear end of the forward track-section overlaps the forward end of the rear' track-section, which secured thereto, asis also clearly illustrated in Fig. 2.

The door is supported b i the track-hanger A', adapted to travel on the front track-section, and a track-hanger A, adapted to travel on the rear track section. These hangers A A are provided with carrying-rollers o., which are grooved to engage the track. The track hangers are also provided with retaining-rollers er, which are located beneath the track when the han ers are in position. These rollers secure the rangers to the track, so that it is impossible for them to be detached therefrom without removing the retainingrollers. The rear track-hanger A is provided with an offset a opposite the track to receive the rear end of the forward track-section when the roller A is traveling on the inwardly -deileeted forward end of the rear track-section. By deecting the forward ends of the tracks inwardly when the door is closed it is carried against the wall or door-casing to form a tight joint, and when opened it is carried outwardly therefrom, so that it has a free movement and does not come in contact with either the wall or the door-casing except as the door is about to close.

As an additional support for the door when it is in its closed posltion the interlocking hook-like members C C are provided, the members C being carried by the door and thc members Cbeing secured to the wall. These members are so arranged that when the door is in its closed position they en age each other. The door is thus supporte not onli,T by the hangers, out by these members, which hold the same firmly in position. Itis found that in the event of fire doors are very likely to warp away from the casing, and thus form an opening, or the tracks are war ied or destroyed and the door thus freed. Y y providing these members not only an additional su port is provided, but they are much less like y to be affected by the heat than is the track, which of necessity is comparatively li ht. The engaging portions of these members C IOO are preferably deflected in a transverse direction, so that as the door is closed it is forced inwardly thereby. Another advanta e of these supporting members is that in or er to hold doors of suitable width effectively in their closed position it is necessary to rovide more than the two supports afforded) by the hangers. ln a track of the construction l y have illustrated it is impractical to utilize the third or central han er on account of the bindin on the trac s, The sup orts describe are therefore of very great a vantage. :[have illustrated in the drawings herein two of these supports, although l wish to remark that ordinarily one centrally arranged will be found to meet all requirements.

In order to automatically close the door, I provide a weightf, which is suspended from a suitable chain or cable, as E. This cable is arranged over a suitable pulley f on the block F and is carried rearwardly in a line substantially parallel with the track. The chain is arranged through the loop c on the rear hanger A, (see Figs. 1 and 3,) so that the door may be freely opened or closed independently thereof. On the rear end of the chain or cable is a catch E', having atransverse pin e therein adapted to engage the loop e when the catch is released to connect the weight and the door, whereby it is closed. The catch E is normally supported by the bracket E, which rejects outwardly from the wall. The catcli is retained on the track by the pivoted lever or trip D. This lever D is ivoted at d, and on its forward end is a rol er D, adapted to engage the hook-shaped end of the catch. The lever D is supported in its engagin position by the cord or cable d', which is a apted to be severed by fire or heat, so that in case of fire the retaining-lever is released, thereby releasing the weight, so that it acts upon the door to close the same.

When there are several compartments and several doors therefor, the cord d is preferably made common to all of them, (see Fig. 7,) so that they are all o erated simultaneously.

While I prefer to orm the retaining-cord of some combustible or fusible material, it is evident that it may be formed of some material so that it will be necessary for the same to be released manually.

By thus arranging the parts the door is o erated normally entirely independent of t e automatic closing means, so that no additional power is required to operate the same. As the automatic closingmeans are not operated or disturbed by the normal operation of the door, they are much less likely to get out of order than is the case where they are in any wise affected by its operation.

Having thus described my invention, what I claim as new, and desire to secure by Let-4 ters Patent, is-

1: The combination of a door;a track consistmg of front and rear sections having their forward ends deflected inwardly, said front section overlapping said rear section; a front hanger for said door; a rear hanger for said door having an offset therein opposite said track; a hook -like bracket arranged above the dooropening, having an inwardly-dclectcd engaging aortion; a hook-like member carried by said door adapted to engage said bracket when the door is in its closed position; a weight; a su porting-cable therefor arran ed parallel wit said track; a loop on said oor through which said cable is arranged; a catch on said cable adapted to engage said loop when the cable is released; a support for said catch; a pivotally-supported lever adapted to engage said catch to retain it upon said bracket; and a tri -cord for said lever, for the purpose specifie 2. The combination of a door; a track consisting of front and rear sections having their forward ends deflected inwardly; han ers for said door a hook-like bracket arrange above the door-opening, having an inwardly-da Hected engaging ortion; a hook-like member carried by said oor adapted to enga e said bracket when the door is in its close position; a weight; asu porting-cable therefor arranged parallel wit said track; a loop on said door through which said cable is arranged; a catch on said cable adapted to engage said loop when the cable is released; a support for said catch; a pivotally-supported lever adapted to engage said catch to retain it upon said support; and atrip-cord for said lever, for the purpose s ecliied.

3. The com ination of a door; a track conF sisting of front and rear sections having their forward ends deflected inwardly, said front sections overlapping said rear sections; a front hanger for said door; a rear hanger for said door having an offset therein opposite said track; grooved carrying-rollers for said hangers; retaining-rollers carried by said hangers arranged beneath said track; a weight; a supporting-cable therefor arranged parallel with said track; a loop on said door through which said cable is arranged; a catch on said cable ada ted to engage said loop when the cable is released; a su port for sald catch; a pivote ally-supported liever adapted to engage said catch to retain it upon said bracket; and a 1grip-cord for said lever, for the purpose speci- 4. The combination of a door; a track consisting of front and rear sections having their forward ends deliected inwardly, said front section overlapping said rear section; a front hanger for said door; a rear hanger for said door havin an offset therein op osite said track; a weight; a su porting-eab e therefor arran ed parallel Witfi said track; a loop on said oor through which said cable is arranged; a catch on said cable adapted to engage said loop When the cable is released; a support for said catch; a pivotally-supported IOO IIO

ISO

Affl:

trip or releasing cord for said catch device, for the purpose specified.

ltj. The combination of a door; a track; suitable hangers for said door; a hook-like bracket arranged above said door-opening, having an inwardlv-deflected engaging portion; and a hook-like member carried by said door adapted to engage said bracket as said door is closed, whereby the same is drawn inwardl)Y against the door-casing; for the purpose specified.

17. The combination of a door; a track; suitable hangers for said doors; a bracket arranged above said door-opening; and a member carried by said door adapted to engage said bracket as said door is closed, for the purpose specified..

1S. The combination of a number of doors; tracks therefor, consisting of front and rear sections having their front ends deflected inwardly, said front sections overlapping said rear sections; front hangers for said doors; rear hangers for said doors having offsets therein opposite said tracks; brackets arranged above the door-openings; members carried. by said doors adapted to engage said brackets when the doors are in` their closed positions; weights; supporting-cables therefor, arranged to engage said doors when released; catch devices for said cables: and a common trip or releasing cord for said catch devices, all eoacting for the purpose specified.

1%). The combination of a number of doors; tracks therefor, consisting of front and rear sections having their front ends deflected. inwardly; hangers for said doors; b ackets arranged above the door-openings; members carried b v said doors adapted to engage said brackets when the doors are in their closed positions; weights; su])porting-cables therefor, arranged to engage said doors when rei leased; catch devices for said cables: and a common trip or releasing cord for said catch devices: all eoacting for the purpose specified.

20. The combination of a number of doors; tracks therefor, consisting of front and rear sections having their front ends deflected inwardly, said front sections overlapping said rear sections; front hangers for said doors; rear hangers for said doors having offsets therein opposite said tracks; weights: supporting-cables therefor, arranged to engage said doors when released; catch devices for said cables; and a common trip or releasing cord for said catch devices, all coacting for the purpose specified.

2l. The con'lbination of a number of doors; tracks therefor, consisting of front and Iear sections having their front ends deflected inwardly; hangers for said doors; weights; supporting-cables therefor, arranged to engage said doors when released; catch devices for said cables; and a common trip or release cord vfor said catch devices; all coacting for the purpose specified.

22. The combination of a number of doors; brackets arranged above the dorm-openings; members carried by said doors adapted to engage said brackets when the doors are in their closed positions; weights; supporti11g-cables therefor, arranged to engage said doors when released; catch devices for said cables; and a connnon trip or releasing cord for said catch devices; all coacting for the purpose specified.

ln Witness whereof l have hereunto set my hand and seal in presence of two witnesses.

FRANK DEN'ILER. lli. s.]

lVitnesses:

ETHEL A. TELLER. (has A. EARL. 

